Quote:
Originally Posted by cfg83
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A Word of Caution:
Unfortunately, that calculator makes the same mistake almost all of them make - they don't consider that the rolling diameter of a tire is about 97% of the measured diameter. That means the speeds calculated are going to be off 3%.
However, since this error also occurs when a comparison between 2 different tires is done, the resulting error is small enough to ignore.
So BE CAREFUL how you use this information.